Mechanical Engineering & Design
Electrical design tells you what wire to run and how to connect everything. Mechanical design answers a different question: will this structure hold? Before a single panel goes on your roof, you need to understand how the load from wind and snow transfers through your racking system into the building structure beneath it — and whether that structure can handle it.
This chapter covers the structural and mechanical design decisions specific to flush-mount roof installations on standard comp shingle roofs — the most common residential scenario. It walks through roof load concepts, how to determine rail and attachment spacing, how to locate and verify rafters, and what proper flashing at penetration points looks like.
Full content coming in Phase 2 Stage 5. This chapter will cover roof load basics (dead load, snow load, wind uplift), rail spacing from span tables, attachment spacing and the load path to structure, finding and verifying rafters, flashing and waterproofing at penetration points, racking system selection, and callouts for non-standard roof types and ground mounts.
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